lib/, src/: Consistently use sizeof() as if it were a function

lib/, src/: Consistently use sizeof() as if it were a function

sizeof(foo)

-  No spaces.
	Not:  sizeof (foo)
-  Parentheses.
	Not:  sizeof foo
-  No parentheses wrapping sizeof itself
	Not:  (sizeof foo)

This patch can be approximated with the following semantic patch:

	$ cat ~/tmp/spatch/sizeof.sp
	@@
	identifier a, b;
	@@

	- sizeof a->b
	+ sizeof(a->b)

	@@
	identifier a, b;
	@@

	- sizeof a.b
	+ sizeof(a.b)

	@@
	identifier x;
	@@

	- sizeof x
	+ sizeof(x)

	@@
	identifier x;
	@@

	- sizeof *x
	+ sizeof(*x)

	@@
	identifier x;
	@@

	- (sizeof(x))
	+ sizeof(x)

	@@
	identifier x;
	@@

	- (sizeof(*x))
	+ sizeof(*x)

Applied as

	$ find contrib/ lib* src/ -type f \
	| xargs spatch --sp-file ~/tmp/spatch/sizeof.sp --in-place;

The differences between the actual patch and the approximation via the
semantic patch from above are whitespace only.  When reviewing, it'll
be useful to diff with '-w'.

Link: <https://lkml.org/lkml/2012/7/11/103>
Signed-off-by: Alejandro Colomar <alx@kernel.org>